Blue nevus like melanoma is a rare melanoma variant that arises from or histologically similar to blue nevus.
The stages of nevus are inception, growth, senescence and involution.
Nevus starts from clusters of pigment forming cells called melanocytes.
Blue nevus is made of incomplete migration of the melanocytes from neural crest and the blue color of blue nevus is caused by the Tyndall effect where shorter wavelengths of incident light are scattered by the dermal melanocytes.
Nevus can be both flat or raised and can range in color from pink, tan, brown, black, blue or skin colored.
A nevus should be biopsied if the nevus starts to grow or change in shape or color which may indicate melanoma cancer.
The chances of nevus turning into melanoma are very low.
Most people have blue nevus and do not get melanoma from it.
Nevus removal is covered by insurance if the nevus is removed for medical reasons and not for cosmetic reasons.
Nevus removal for cosmetic reasons is not covered by insurance.
Nevus does not grow back after removal.
Most blue nevus are non cancerous and nothing to worry about but it can be a good idea to get it checked out just to be safe.
Nevus may go away after a few years or it can last a lifetime and most nevus does last a lifetime unless removed.
Nevus themselves are not precancerous although nevus can become cancerous in rare cases.
Nevus are not cancerous very often and only around 1 in 3,165 nevus become cancerous.
Blue nevus can become cancerous as there is a small possibility for the cellular blue nevus to undergo malignant transformation and then become malignant cellular blue nevus.
Blue nevi appears blue because of the deep or dermal location of the melanin pigment and the Tyndall effect.
It is normal for nevus to grow especially as you age although it may not always grow and does not always indicate that the nevus is malignant when it grows.
A blue nevus is diagnosed through visual examination and sometimes through a dermatoscopy to check for patterns that are consistent with blue nevus.
If the dermatoscopy is not sufficient to diagnose the blue nevus then the doctor may want to perform another test called an excision biopsy.
Nevus is rare and only occurs in around 0.4 percent to 0.5 percent of the U.S. population.
The most common pigmented nevus is acquired melanocytic nevus.
The medical term for blue nevus is dermal melanocytoma or blue mole.
Blue nevus is seen as genetic and can also appear suddenly or over time.
The nevus can be removed through laser surgery or through an excision to remove the nevus.
You should get your blue nevus removed if it becomes problematic or is bothering you or is malignant.
Most blue nevus are not cancerous and not harmful but some people prefer to have them removed regardless.
The cost to remove blue nevus ranges from $150.00 to $300.00.
Blue nevus is treated through an excision or re-excision if there is evidence of malignant cellular blue nevus.
In some cases frankincense oil may fade the blue nevus.
Nevus in some cases does go away or fade over time but in some cases nevus may not go away without treatment.
Nevus does get bigger and can grow at the same rate the body grows and eventually be at least 15.75 inches across.
The most common site of blue nevus is the scalp, extremities, sacrococcygeal region, or buttocks.
The three types of blue nevus are cellular blue nevus, atypical cellular blue nevus and malignant BN/melanoma blue nevus.
Nevus can appear suddenly or develop over time.
A nevus looks like a common mole and is a small growth on your skin which can be brown in color, tan in color or pink in color and have a distinct edge.
A benign nevus is usually skin colored or dark brown in color and are usually round or oval in shape.
When your nevus is cancerous the nevus will look like ulcers and take on a more nodular or plaque like form.
Cancerous blue nevus will look like normal blue nevus although in the later stages the cancerous blue nevus will look like ulcers and also have a more nodular or plaque like form.
Blue nevus is rare and can be found in 0.5% to 4% of the white population.
Blue nevus is most often non cancerous and nothing to worry about.
The causes of a blue nevus is the Tyndall effect when light is preferentially scattering shorter wavelengths by melanin found in the dermis of the skin.
Blue nevus is a skin condition and a group of skins lesions that are characterized by dermal proliferation of melanocytes presenting as blue to black nodules on the head, extremities, or buttocks.
Most cases of blue nevus are non cancerous although there is a small possibility that a cellular blue nevus can undergo malignant transformation and become a malignant cellular blue nevus (MCBN).
So a biopsy of any changing or suspicious lesion should be done.
A blue nevus is a small bluish mole that will typically last the person's lifetime.
The only treatment is to remove the mole surgically, although this is not usually necessary.
For a solitary lesion of blue nevus, simple excision is usually curative.
Rare cases of persistent blue nevi, which manifest as satellite lesions around the original excision site, have been reported.
These must be distinguished from malignant blue nevus, and reexcision is recommended.
Usually, no treatment is required for a blue nevus.
Blue naevi that are bigger than 1 cm, changing or appearing de novo in an older adult should be considered for histological evaluation to exclude melanoma.
The size of a cellular blue nevus can also get larger with time and the surface of the nevus can even ulcerate.
The diagnosis can be made by visual inspection alone.
Recurrent blue nevi can display atypical features not seen in the primary lesion, such as pleomorphism and mitotic activity.
They usually tend to follow a benign course; however, in some cases, recurrence may indicate malignant transformation.
The term "malignant blue nevus" refers to a rare and heterogeneous group of melanomas that arise in several clinical settings.
This includes melanomas arising in association with a common or cellular blue nevus and those arising de novo and resembling cellular blue nevi.
The blue nevus can be found on many areas of the body; however, most have been found on the head and neck, sacral area, back of the hands, and feet.
A blue nevus can vary in appearance and be categorized as either a common blue nevus or a cellular blue nevus.
A common blue nevus is usually benign, remains unchanged throughout life, and does not lead to any complications.
In rare situations, a cellular blue nevus may develop into a form of melanoma called a malignant cellular blue nevus.
Blue nevus (BN) and related entities are a heterogeneous group of congenital and acquired melanocytic tumors that includes dendritic ("common") blue nevus (DBN), cellular blue nevus (CBN), and variants, as atypical cellular blue nevus (ACBN) and malignant BN/melanoma.